Try this:
m - matrix(list(1, 1:2, 1:3, 1:4), 2)
m[[1,1]]
[1] 1
m[[2,1]]
[1] 1 2
m
[,1] [,2]
[1,] 1 Integer,3
[2,] Integer,2 Integer,4
On 7/10/07, Balazs Torma [EMAIL PROTECTED] wrote:
Dear users,
please help to define the following data structure:
I would like to have a matrix, where every element is a container of
different size , containing real numbers. The containers (bins) are
addressed by an index pair [i,j] (i is number of corresponding row of
the matrix, j is the coloumn of the matrix). The containers are
initially empty, I would like to fill them dynamically (put certain
numbers into different bins in each iteration).
I can not define a 3 dimensional array, because I don't know the
length of the third dimension in advance, and because the vectors
(containers) in the matrix are usually of different length.
Any help greatly appreciated,
Balazs Torma
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